For I the Lord do not change therefore you, O children of Jacob, are not consumed.

— Malachi 36

God is not man, that he should lie, or a son of man, that he should change his mind. Has he said, and will he not do it? Or has he spoken, and will he not fulfill it?

— Numbers 2319

Jesus Christ is the same yesterday and today and forever.

— Hebrews 138

So when God desired to show more convincingly to the heirs of the promise the unchangeable character of his purpose, he guaranteed it with an oath

— Hebrews 617

The grass withers, the flower fades, but the word of our God will stand forever.

— Isaiah 408